third_party/sqlite/src/test/descidx1.test - cobalt - Git at Google

 # 2005 December 21
 #
 # The author disclaims copyright to this source code.  In place of
 # a legal notice, here is a blessing:
 #
 #    May you do good and not evil.
 #    May you find forgiveness for yourself and forgive others.
 #    May you share freely, never taking more than you give.
 #
 #*************************************************************************
 # This file implements regression tests for SQLite library.  The
 # focus of this script is descending indices.
 #
 # $Id: descidx1.test,v 1.10 2008/03/19 00:21:31 drh Exp $
 #

 set testdir [file dirname $argv0]
 source $testdir/tester.tcl

 # Do not use a codec for tests in this file, as the database file is
 # manipulated directly using tcl scripts (using the [hexio_write] command).
 #
 do_not_use_codec

 db eval {PRAGMA legacy_file_format=OFF}

 # This procedure sets the value of the file-format in file 'test.db'
 # to $newval. Also, the schema cookie is incremented.
 #
 proc set_file_format {newval} {
   hexio_write test.db 44 [hexio_render_int32 $newval]
   set schemacookie [hexio_get_int [hexio_read test.db 40 4]]
   incr schemacookie
   hexio_write test.db 40 [hexio_render_int32 $schemacookie]
   return {}
 }

 # This procedure returns the value of the file-format in file 'test.db'.
 #
 proc get_file_format {{fname test.db}} {
   return [hexio_get_int [hexio_read $fname 44 4]]
 }


 # Verify that the file format starts as 4.
 #
 do_test descidx1-1.1 {
   execsql {
     CREATE TABLE t1(a,b);
     CREATE INDEX i1 ON t1(b ASC);
   }
   get_file_format
 } {4}
 do_test descidx1-1.2 {
   execsql {
     CREATE INDEX i2 ON t1(a DESC);
   }
   get_file_format
 } {4}

 # Put some information in the table and verify that the descending
 # index actually works.
 #
 do_test descidx1-2.1 {
   execsql {
     INSERT INTO t1 VALUES(1,1);
     INSERT INTO t1 VALUES(2,2);
     INSERT INTO t1 SELECT a+2, a+2 FROM t1;
     INSERT INTO t1 SELECT a+4, a+4 FROM t1;
     SELECT b FROM t1 WHERE a>3 AND a<7;
   }
 } {6 5 4}
 do_test descidx1-2.2 {
   execsql {
     SELECT a FROM t1 WHERE b>3 AND b<7;
   }
 } {4 5 6}
 do_test descidx1-2.3 {
   execsql {
     SELECT b FROM t1 WHERE a>=3 AND a<7;
   }
 } {6 5 4 3}
 do_test descidx1-2.4 {
   execsql {
     SELECT b FROM t1 WHERE a>3 AND a<=7;
   }
 } {7 6 5 4}
 do_test descidx1-2.5 {
   execsql {
     SELECT b FROM t1 WHERE a>=3 AND a<=7;
   }
 } {7 6 5 4 3}
 do_test descidx1-2.6 {
   execsql {
     SELECT a FROM t1 WHERE b>=3 AND b<=7;
   }
 } {3 4 5 6 7}

 # This procedure executes the SQL.  Then it checks to see if the OP_Sort
 # opcode was executed.  If an OP_Sort did occur, then "sort" is appended
 # to the result.  If no OP_Sort happened, then "nosort" is appended.
 #
 # This procedure is used to check to make sure sorting is or is not
 # occurring as expected.
 #
 proc cksort {sql} {
   set ::sqlite_sort_count 0
   set data [execsql $sql]
   if {$::sqlite_sort_count} {set x sort} {set x nosort}
   lappend data $x
   return $data
 }

 # Test sorting using a descending index.
 #
 do_test descidx1-3.1 {
   cksort {SELECT a FROM t1 ORDER BY a}
 } {1 2 3 4 5 6 7 8 nosort}
 do_test descidx1-3.2 {
   cksort {SELECT a FROM t1 ORDER BY a ASC}
 } {1 2 3 4 5 6 7 8 nosort}
 do_test descidx1-3.3 {
   cksort {SELECT a FROM t1 ORDER BY a DESC}
 } {8 7 6 5 4 3 2 1 nosort}
 do_test descidx1-3.4 {
   cksort {SELECT b FROM t1 ORDER BY a}
 } {1 2 3 4 5 6 7 8 nosort}
 do_test descidx1-3.5 {
   cksort {SELECT b FROM t1 ORDER BY a ASC}
 } {1 2 3 4 5 6 7 8 nosort}
 do_test descidx1-3.6 {
   cksort {SELECT b FROM t1 ORDER BY a DESC}
 } {8 7 6 5 4 3 2 1 nosort}
 do_test descidx1-3.7 {
   cksort {SELECT a FROM t1 ORDER BY b}
 } {1 2 3 4 5 6 7 8 nosort}
 do_test descidx1-3.8 {
   cksort {SELECT a FROM t1 ORDER BY b ASC}
 } {1 2 3 4 5 6 7 8 nosort}
 do_test descidx1-3.9 {
   cksort {SELECT a FROM t1 ORDER BY b DESC}
 } {8 7 6 5 4 3 2 1 nosort}
 do_test descidx1-3.10 {
   cksort {SELECT b FROM t1 ORDER BY b}
 } {1 2 3 4 5 6 7 8 nosort}
 do_test descidx1-3.11 {
   cksort {SELECT b FROM t1 ORDER BY b ASC}
 } {1 2 3 4 5 6 7 8 nosort}
 do_test descidx1-3.12 {
   cksort {SELECT b FROM t1 ORDER BY b DESC}
 } {8 7 6 5 4 3 2 1 nosort}

 do_test descidx1-3.21 {
   cksort {SELECT a FROM t1 WHERE a>3 AND a<8 ORDER BY a}
 } {4 5 6 7 nosort}
 do_test descidx1-3.22 {
   cksort {SELECT a FROM t1 WHERE a>3 AND a<8 ORDER BY a ASC}
 } {4 5 6 7 nosort}
 do_test descidx1-3.23 {
   cksort {SELECT a FROM t1 WHERE a>3 AND a<8 ORDER BY a DESC}
 } {7 6 5 4 nosort}
 do_test descidx1-3.24 {
   cksort {SELECT b FROM t1 WHERE a>3 AND a<8 ORDER BY a}
 } {4 5 6 7 nosort}
 do_test descidx1-3.25 {
   cksort {SELECT b FROM t1 WHERE a>3 AND a<8 ORDER BY a ASC}
 } {4 5 6 7 nosort}
 do_test descidx1-3.26 {
   cksort {SELECT b FROM t1 WHERE a>3 AND a<8 ORDER BY a DESC}
 } {7 6 5 4 nosort}

 # Create a table with indices that are descending on some terms and
 # ascending on others.
 #
 ifcapable bloblit {
   do_test descidx1-4.1 {
     execsql {
       CREATE TABLE t2(a INT, b TEXT, c BLOB, d REAL);
       CREATE INDEX i3 ON t2(a ASC, b DESC, c ASC);
       CREATE INDEX i4 ON t2(b DESC, a ASC, d DESC);
       INSERT INTO t2 VALUES(1,'one',x'31',1.0);
       INSERT INTO t2 VALUES(2,'two',x'3232',2.0);
       INSERT INTO t2 VALUES(3,'three',x'333333',3.0);
       INSERT INTO t2 VALUES(4,'four',x'34343434',4.0);
       INSERT INTO t2 VALUES(5,'five',x'3535353535',5.0);
       INSERT INTO t2 VALUES(6,'six',x'363636363636',6.0);
       INSERT INTO t2 VALUES(2,'two',x'323232',2.1);
       INSERT INTO t2 VALUES(2,'zwei',x'3232',2.2);
       INSERT INTO t2 VALUES(2,NULL,NULL,2.3);
       SELECT count(*) FROM t2;
     }
   } {9}
   do_test descidx1-4.2 {
     execsql {
       SELECT d FROM t2 ORDER BY a;
     }
   } {1.0 2.2 2.0 2.1 2.3 3.0 4.0 5.0 6.0}
   do_test descidx1-4.3 {
     execsql {
       SELECT d FROM t2 WHERE a>=2;
     }
   } {2.2 2.0 2.1 2.3 3.0 4.0 5.0 6.0}
   do_test descidx1-4.4 {
     execsql {
       SELECT d FROM t2 WHERE a>2;
     }
   } {3.0 4.0 5.0 6.0}
   do_test descidx1-4.5 {
     execsql {
       SELECT d FROM t2 WHERE a=2 AND b>'two';
     }
   } {2.2}
   do_test descidx1-4.6 {
     execsql {
       SELECT d FROM t2 WHERE a=2 AND b>='two';
     }
   } {2.2 2.0 2.1}
   do_test descidx1-4.7 {
     execsql {
       SELECT d FROM t2 WHERE a=2 AND b<'two';
     }
   } {}
   do_test descidx1-4.8 {
     execsql {
       SELECT d FROM t2 WHERE a=2 AND b<='two';
     }
   } {2.0 2.1}
 }

 do_test descidx1-5.1 {
   execsql {
     CREATE TABLE t3(a,b,c,d);
     CREATE INDEX t3i1 ON t3(a DESC, b ASC, c DESC, d ASC);
     INSERT INTO t3 VALUES(0,0,0,0);
     INSERT INTO t3 VALUES(0,0,0,1);
     INSERT INTO t3 VALUES(0,0,1,0);
     INSERT INTO t3 VALUES(0,0,1,1);
     INSERT INTO t3 VALUES(0,1,0,0);
     INSERT INTO t3 VALUES(0,1,0,1);
     INSERT INTO t3 VALUES(0,1,1,0);
     INSERT INTO t3 VALUES(0,1,1,1);
     INSERT INTO t3 VALUES(1,0,0,0);
     INSERT INTO t3 VALUES(1,0,0,1);
     INSERT INTO t3 VALUES(1,0,1,0);
     INSERT INTO t3 VALUES(1,0,1,1);
     INSERT INTO t3 VALUES(1,1,0,0);
     INSERT INTO t3 VALUES(1,1,0,1);
     INSERT INTO t3 VALUES(1,1,1,0);
     INSERT INTO t3 VALUES(1,1,1,1);
     SELECT count(*) FROM t3;
   }
 } {16}
 do_test descidx1-5.2 {
   cksort {
     SELECT a||b||c||d FROM t3 ORDER BY a,b,c,d;
   }
 } {0000 0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011 1100 1101 1110 1111 sort}
 do_test descidx1-5.3 {
   cksort {
     SELECT a||b||c||d FROM t3 ORDER BY a DESC, b ASC, c DESC, d ASC;
   }
 } {1010 1011 1000 1001 1110 1111 1100 1101 0010 0011 0000 0001 0110 0111 0100 0101 nosort}
 do_test descidx1-5.4 {
   cksort {
     SELECT a||b||c||d FROM t3 ORDER BY a ASC, b DESC, c ASC, d DESC;
   }
 } {0101 0100 0111 0110 0001 0000 0011 0010 1101 1100 1111 1110 1001 1000 1011 1010 nosort}
 do_test descidx1-5.5 {
   cksort {
     SELECT a||b||c FROM t3 WHERE d=0 ORDER BY a DESC, b ASC, c DESC
   }
 } {101 100 111 110 001 000 011 010 nosort}
 do_test descidx1-5.6 {
   cksort {
     SELECT a||b||c FROM t3 WHERE d=0 ORDER BY a ASC, b DESC, c ASC
   }
 } {010 011 000 001 110 111 100 101 nosort}
 do_test descidx1-5.7 {
   cksort {
     SELECT a||b||c FROM t3 WHERE d=0 ORDER BY a ASC, b DESC, c DESC
   }
 } {011 010 001 000 111 110 101 100 sort}
 do_test descidx1-5.8 {
   cksort {
     SELECT a||b||c FROM t3 WHERE d=0 ORDER BY a ASC, b ASC, c ASC
   }
 } {000 001 010 011 100 101 110 111 sort}
 do_test descidx1-5.9 {
   cksort {
     SELECT a||b||c FROM t3 WHERE d=0 ORDER BY a DESC, b DESC, c ASC
   }
 } {110 111 100 101 010 011 000 001 sort}

 # Test the legacy_file_format pragma here because we have access to
 # the get_file_format command.
 #
 ifcapable legacyformat {
   do_test descidx1-6.1 {
     db close
     file delete -force test.db test.db-journal
     sqlite3 db test.db
     execsql {PRAGMA legacy_file_format}
   } {1}
 } else {
   do_test descidx1-6.1 {
     db close
     file delete -force test.db test.db-journal
     sqlite3 db test.db
     execsql {PRAGMA legacy_file_format}
   } {0}
 }
 do_test descidx1-6.2 {
   execsql {PRAGMA legacy_file_format=YES}
   execsql {PRAGMA legacy_file_format}
 } {1}
 do_test descidx1-6.3 {
   execsql {
     CREATE TABLE t1(a,b,c);
   }
   get_file_format
 } {1}
 ifcapable vacuum {
   # Verify that the file format is preserved across a vacuum.
   do_test descidx1-6.3.1 {
     execsql {VACUUM}
     get_file_format
   } {1}
 }
 do_test descidx1-6.4 {
   db close
   file delete -force test.db test.db-journal
   sqlite3 db test.db
   execsql {PRAGMA legacy_file_format=NO}
   execsql {PRAGMA legacy_file_format}
 } {0}
 do_test descidx1-6.5 {
   execsql {
     CREATE TABLE t1(a,b,c);
     CREATE INDEX i1 ON t1(a ASC, b DESC, c ASC);
     INSERT INTO t1 VALUES(1,2,3);
     INSERT INTO t1 VALUES(1,1,0);
     INSERT INTO t1 VALUES(1,2,1);
     INSERT INTO t1 VALUES(1,3,4);
   }
   get_file_format
 } {4}
 ifcapable vacuum {
   # Verify that the file format is preserved across a vacuum.
   do_test descidx1-6.6 {
     execsql {VACUUM}
     get_file_format
   } {4}
   do_test descidx1-6.7 {
     execsql {
       PRAGMA legacy_file_format=ON;
       VACUUM;
     }
     get_file_format
   } {4}
 }


 finish_test
	# 2005 December 21
	#
	# The author disclaims copyright to this source code. In place of
	# a legal notice, here is a blessing:
	#
	# May you do good and not evil.
	# May you find forgiveness for yourself and forgive others.
	# May you share freely, never taking more than you give.
	#
	#*************************************************************************
	# This file implements regression tests for SQLite library. The
	# focus of this script is descending indices.
	#
	# $Id: descidx1.test,v 1.10 2008/03/19 00:21:31 drh Exp $
	#

	set testdir [file dirname $argv0]
	source $testdir/tester.tcl

	# Do not use a codec for tests in this file, as the database file is
	# manipulated directly using tcl scripts (using the [hexio_write] command).
	#
	do_not_use_codec

	db eval {PRAGMA legacy_file_format=OFF}

	# This procedure sets the value of the file-format in file 'test.db'
	# to $newval. Also, the schema cookie is incremented.
	#
	proc set_file_format {newval} {
	hexio_write test.db 44 [hexio_render_int32 $newval]
	set schemacookie [hexio_get_int [hexio_read test.db 40 4]]
	incr schemacookie
	hexio_write test.db 40 [hexio_render_int32 $schemacookie]
	return {}
	}

	# This procedure returns the value of the file-format in file 'test.db'.
	#
	proc get_file_format {{fname test.db}} {
	return [hexio_get_int [hexio_read $fname 44 4]]
	}


	# Verify that the file format starts as 4.
	#
	do_test descidx1-1.1 {
	execsql {
	CREATE TABLE t1(a,b);
	CREATE INDEX i1 ON t1(b ASC);
	}
	get_file_format
	} {4}
	do_test descidx1-1.2 {
	execsql {
	CREATE INDEX i2 ON t1(a DESC);
	}
	get_file_format
	} {4}

	# Put some information in the table and verify that the descending
	# index actually works.
	#
	do_test descidx1-2.1 {
	execsql {
	INSERT INTO t1 VALUES(1,1);
	INSERT INTO t1 VALUES(2,2);
	INSERT INTO t1 SELECT a+2, a+2 FROM t1;
	INSERT INTO t1 SELECT a+4, a+4 FROM t1;
	SELECT b FROM t1 WHERE a>3 AND a<7;
	}
	} {6 5 4}
	do_test descidx1-2.2 {
	execsql {
	SELECT a FROM t1 WHERE b>3 AND b<7;
	}
	} {4 5 6}
	do_test descidx1-2.3 {
	execsql {
	SELECT b FROM t1 WHERE a>=3 AND a<7;
	}
	} {6 5 4 3}
	do_test descidx1-2.4 {
	execsql {
	SELECT b FROM t1 WHERE a>3 AND a<=7;
	}
	} {7 6 5 4}
	do_test descidx1-2.5 {
	execsql {
	SELECT b FROM t1 WHERE a>=3 AND a<=7;
	}
	} {7 6 5 4 3}
	do_test descidx1-2.6 {
	execsql {
	SELECT a FROM t1 WHERE b>=3 AND b<=7;
	}
	} {3 4 5 6 7}

	# This procedure executes the SQL. Then it checks to see if the OP_Sort
	# opcode was executed. If an OP_Sort did occur, then "sort" is appended
	# to the result. If no OP_Sort happened, then "nosort" is appended.
	#
	# This procedure is used to check to make sure sorting is or is not
	# occurring as expected.
	#
	proc cksort {sql} {
	set ::sqlite_sort_count 0
	set data [execsql $sql]
	if {$::sqlite_sort_count} {set x sort} {set x nosort}
	lappend data $x
	return $data
	}

	# Test sorting using a descending index.
	#
	do_test descidx1-3.1 {
	cksort {SELECT a FROM t1 ORDER BY a}
	} {1 2 3 4 5 6 7 8 nosort}
	do_test descidx1-3.2 {
	cksort {SELECT a FROM t1 ORDER BY a ASC}
	} {1 2 3 4 5 6 7 8 nosort}
	do_test descidx1-3.3 {
	cksort {SELECT a FROM t1 ORDER BY a DESC}
	} {8 7 6 5 4 3 2 1 nosort}
	do_test descidx1-3.4 {
	cksort {SELECT b FROM t1 ORDER BY a}
	} {1 2 3 4 5 6 7 8 nosort}
	do_test descidx1-3.5 {
	cksort {SELECT b FROM t1 ORDER BY a ASC}
	} {1 2 3 4 5 6 7 8 nosort}
	do_test descidx1-3.6 {
	cksort {SELECT b FROM t1 ORDER BY a DESC}
	} {8 7 6 5 4 3 2 1 nosort}
	do_test descidx1-3.7 {
	cksort {SELECT a FROM t1 ORDER BY b}
	} {1 2 3 4 5 6 7 8 nosort}
	do_test descidx1-3.8 {
	cksort {SELECT a FROM t1 ORDER BY b ASC}
	} {1 2 3 4 5 6 7 8 nosort}
	do_test descidx1-3.9 {
	cksort {SELECT a FROM t1 ORDER BY b DESC}
	} {8 7 6 5 4 3 2 1 nosort}
	do_test descidx1-3.10 {
	cksort {SELECT b FROM t1 ORDER BY b}
	} {1 2 3 4 5 6 7 8 nosort}
	do_test descidx1-3.11 {
	cksort {SELECT b FROM t1 ORDER BY b ASC}
	} {1 2 3 4 5 6 7 8 nosort}
	do_test descidx1-3.12 {
	cksort {SELECT b FROM t1 ORDER BY b DESC}
	} {8 7 6 5 4 3 2 1 nosort}

	do_test descidx1-3.21 {
	cksort {SELECT a FROM t1 WHERE a>3 AND a<8 ORDER BY a}
	} {4 5 6 7 nosort}
	do_test descidx1-3.22 {
	cksort {SELECT a FROM t1 WHERE a>3 AND a<8 ORDER BY a ASC}
	} {4 5 6 7 nosort}
	do_test descidx1-3.23 {
	cksort {SELECT a FROM t1 WHERE a>3 AND a<8 ORDER BY a DESC}
	} {7 6 5 4 nosort}
	do_test descidx1-3.24 {
	cksort {SELECT b FROM t1 WHERE a>3 AND a<8 ORDER BY a}
	} {4 5 6 7 nosort}
	do_test descidx1-3.25 {
	cksort {SELECT b FROM t1 WHERE a>3 AND a<8 ORDER BY a ASC}
	} {4 5 6 7 nosort}
	do_test descidx1-3.26 {
	cksort {SELECT b FROM t1 WHERE a>3 AND a<8 ORDER BY a DESC}
	} {7 6 5 4 nosort}

	# Create a table with indices that are descending on some terms and
	# ascending on others.
	#
	ifcapable bloblit {
	do_test descidx1-4.1 {
	execsql {
	CREATE TABLE t2(a INT, b TEXT, c BLOB, d REAL);
	CREATE INDEX i3 ON t2(a ASC, b DESC, c ASC);
	CREATE INDEX i4 ON t2(b DESC, a ASC, d DESC);
	INSERT INTO t2 VALUES(1,'one',x'31',1.0);
	INSERT INTO t2 VALUES(2,'two',x'3232',2.0);
	INSERT INTO t2 VALUES(3,'three',x'333333',3.0);
	INSERT INTO t2 VALUES(4,'four',x'34343434',4.0);
	INSERT INTO t2 VALUES(5,'five',x'3535353535',5.0);
	INSERT INTO t2 VALUES(6,'six',x'363636363636',6.0);
	INSERT INTO t2 VALUES(2,'two',x'323232',2.1);
	INSERT INTO t2 VALUES(2,'zwei',x'3232',2.2);
	INSERT INTO t2 VALUES(2,NULL,NULL,2.3);
	SELECT count(*) FROM t2;
	}
	} {9}
	do_test descidx1-4.2 {
	execsql {
	SELECT d FROM t2 ORDER BY a;
	}
	} {1.0 2.2 2.0 2.1 2.3 3.0 4.0 5.0 6.0}
	do_test descidx1-4.3 {
	execsql {
	SELECT d FROM t2 WHERE a>=2;
	}
	} {2.2 2.0 2.1 2.3 3.0 4.0 5.0 6.0}
	do_test descidx1-4.4 {
	execsql {
	SELECT d FROM t2 WHERE a>2;
	}
	} {3.0 4.0 5.0 6.0}
	do_test descidx1-4.5 {
	execsql {
	SELECT d FROM t2 WHERE a=2 AND b>'two';
	}
	} {2.2}
	do_test descidx1-4.6 {
	execsql {
	SELECT d FROM t2 WHERE a=2 AND b>='two';
	}
	} {2.2 2.0 2.1}
	do_test descidx1-4.7 {
	execsql {
	SELECT d FROM t2 WHERE a=2 AND b<'two';
	}
	} {}
	do_test descidx1-4.8 {
	execsql {
	SELECT d FROM t2 WHERE a=2 AND b<='two';
	}
	} {2.0 2.1}
	}

	do_test descidx1-5.1 {
	execsql {
	CREATE TABLE t3(a,b,c,d);
	CREATE INDEX t3i1 ON t3(a DESC, b ASC, c DESC, d ASC);
	INSERT INTO t3 VALUES(0,0,0,0);
	INSERT INTO t3 VALUES(0,0,0,1);
	INSERT INTO t3 VALUES(0,0,1,0);
	INSERT INTO t3 VALUES(0,0,1,1);
	INSERT INTO t3 VALUES(0,1,0,0);
	INSERT INTO t3 VALUES(0,1,0,1);
	INSERT INTO t3 VALUES(0,1,1,0);
	INSERT INTO t3 VALUES(0,1,1,1);
	INSERT INTO t3 VALUES(1,0,0,0);
	INSERT INTO t3 VALUES(1,0,0,1);
	INSERT INTO t3 VALUES(1,0,1,0);
	INSERT INTO t3 VALUES(1,0,1,1);
	INSERT INTO t3 VALUES(1,1,0,0);
	INSERT INTO t3 VALUES(1,1,0,1);
	INSERT INTO t3 VALUES(1,1,1,0);
	INSERT INTO t3 VALUES(1,1,1,1);
	SELECT count(*) FROM t3;
	}
	} {16}
	do_test descidx1-5.2 {
	cksort {
	SELECT a\|\|b\|\|c\|\|d FROM t3 ORDER BY a,b,c,d;
	}
	} {0000 0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011 1100 1101 1110 1111 sort}
	do_test descidx1-5.3 {
	cksort {
	SELECT a\|\|b\|\|c\|\|d FROM t3 ORDER BY a DESC, b ASC, c DESC, d ASC;
	}
	} {1010 1011 1000 1001 1110 1111 1100 1101 0010 0011 0000 0001 0110 0111 0100 0101 nosort}
	do_test descidx1-5.4 {
	cksort {
	SELECT a\|\|b\|\|c\|\|d FROM t3 ORDER BY a ASC, b DESC, c ASC, d DESC;
	}
	} {0101 0100 0111 0110 0001 0000 0011 0010 1101 1100 1111 1110 1001 1000 1011 1010 nosort}
	do_test descidx1-5.5 {
	cksort {
	SELECT a\|\|b\|\|c FROM t3 WHERE d=0 ORDER BY a DESC, b ASC, c DESC
	}
	} {101 100 111 110 001 000 011 010 nosort}
	do_test descidx1-5.6 {
	cksort {
	SELECT a\|\|b\|\|c FROM t3 WHERE d=0 ORDER BY a ASC, b DESC, c ASC
	}
	} {010 011 000 001 110 111 100 101 nosort}
	do_test descidx1-5.7 {
	cksort {
	SELECT a\|\|b\|\|c FROM t3 WHERE d=0 ORDER BY a ASC, b DESC, c DESC
	}
	} {011 010 001 000 111 110 101 100 sort}
	do_test descidx1-5.8 {
	cksort {
	SELECT a\|\|b\|\|c FROM t3 WHERE d=0 ORDER BY a ASC, b ASC, c ASC
	}
	} {000 001 010 011 100 101 110 111 sort}
	do_test descidx1-5.9 {
	cksort {
	SELECT a\|\|b\|\|c FROM t3 WHERE d=0 ORDER BY a DESC, b DESC, c ASC
	}
	} {110 111 100 101 010 011 000 001 sort}

	# Test the legacy_file_format pragma here because we have access to
	# the get_file_format command.
	#
	ifcapable legacyformat {
	do_test descidx1-6.1 {
	db close
	file delete -force test.db test.db-journal
	sqlite3 db test.db
	execsql {PRAGMA legacy_file_format}
	} {1}
	} else {
	do_test descidx1-6.1 {
	db close
	file delete -force test.db test.db-journal
	sqlite3 db test.db
	execsql {PRAGMA legacy_file_format}
	} {0}
	}
	do_test descidx1-6.2 {
	execsql {PRAGMA legacy_file_format=YES}
	execsql {PRAGMA legacy_file_format}
	} {1}
	do_test descidx1-6.3 {
	execsql {
	CREATE TABLE t1(a,b,c);
	}
	get_file_format
	} {1}
	ifcapable vacuum {
	# Verify that the file format is preserved across a vacuum.
	do_test descidx1-6.3.1 {
	execsql {VACUUM}
	get_file_format
	} {1}
	}
	do_test descidx1-6.4 {
	db close
	file delete -force test.db test.db-journal
	sqlite3 db test.db
	execsql {PRAGMA legacy_file_format=NO}
	execsql {PRAGMA legacy_file_format}
	} {0}
	do_test descidx1-6.5 {
	execsql {
	CREATE TABLE t1(a,b,c);
	CREATE INDEX i1 ON t1(a ASC, b DESC, c ASC);
	INSERT INTO t1 VALUES(1,2,3);
	INSERT INTO t1 VALUES(1,1,0);
	INSERT INTO t1 VALUES(1,2,1);
	INSERT INTO t1 VALUES(1,3,4);
	}
	get_file_format
	} {4}
	ifcapable vacuum {
	# Verify that the file format is preserved across a vacuum.
	do_test descidx1-6.6 {
	execsql {VACUUM}
	get_file_format
	} {4}
	do_test descidx1-6.7 {
	execsql {
	PRAGMA legacy_file_format=ON;
	VACUUM;
	}
	get_file_format
	} {4}
	}



	finish_test